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Showing 1 to 10 of 10 for “"cottonmouths"”.
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Behavioral Responses By Cottonmouths (Agkistrodon Piscivorus) To Chemical And Visual Predator Cues
… but visual cues may elicit defensive responses. Cottonmouths (Agkistrodon piscivorus) exhibit an array of antipredatory behaviors that have been thoroughly characterized in response to human aggressors, but their responses to cues from other predators are poorly known. I conducted three …
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Venom Expelled by Cottonmouths (Agkistrodon Piscivorus) Across Different Prey Sizes, Prey Taxa, and Snake Body Temperatures
… and venom expenditure in a cohort of juvenile cottonmouths was examined. Venom expenditure did not vary significantly among prey sizes or prey types. However, lizard prey were held significantly more often than mice. The effect of snake body temperature on foraging response variables across a …
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Habituation, Scent-Trailing, and Effects of Temperature Upon the Strike-Induced Chemosensory Searching (SICS) in the Cottonmouth (Agkistrodon Piscivorus)
… 20-22°;C, and 28-30°;C. At warmer temperatures cottonmouths relocated struck prey sooner, swallowed prey sooner, and tended to release prey more often than snakes at lower body temperatures. These data are consistent with the view that there are optimal body temperatures to maximize foraging …
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Factors Influencing Venom Expenditure During Defensive Bites by Cottonmouths (AGKISTRODON PISCIVORUS) and Rattlesnakes (CROTALUS VIRIDIS, CROTALUS ATROX)
… venom expenditure during defensive bites by cottonmouths <em>(Agkistrodon piscivorus)</em>, western rattlesnakes <em>(Crotalus viridis)</em> and western diamondbacks <em>(C. atrox)</em>. Defensive bites were elicited by models of human limbs (warm saline-filled gloves) and by voluntary venom …
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The Ontogeny of Spatial Ecology and Habitat Use in a Population of Cottonmouths (Agkistrodon Piscivorus) in Southwest Missouri
… snake populations. I tracked eight juvenile cottonmouths (Agkistrodon piscivorus) during the summer and fall of 2008 to determine how their home ranges, rates and magnitudes of movement, and microhabitat use compared to adults previously tracked at the same site. When gravid females were …
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Comparative Phylogenetic Analysis in Populations of the Western Cottonmouth (Agkistrodon Piscivorus Leucostoma) Distributed in Three North American Drainage Basins
… Knights et al. (1992) observed that western cottonmouths were highly divergent from both eastern and Florida cottonmouths yet the degree of divergence among populations of the western cottonmouth remains unexplored. During the Pleistocene ice-ages populations of cottonmouths were confined to …
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Ecology of the Eastern Cottonmouth (<i>Agkistrodon p. piscivorus</i>) at Back Bay National Wildlife Refuge: A Comparative Study of Natural and Anthropogenic Marsh Habitats
… habitat variables for determining sites used by cottonmouths in both marshes were: distance to water, distance to overstory trees, leaf litter cover, and vegetation cover. Gut analyses suggested that frogs (<em>Rana</em> spp.) and sunfishes (<em>Lepomis</em>spp.) were the primary prey sources. …
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Habitat Use and Spatial Patterns of a Cottonmouth Snake (Agkistrodon Piscivorus Leucostoma) Population and Thermoregulation of Male Cottonmouth Snakes in Southwestern Missouri
… patterns, habitat use and thermoregulation of cottonmouths in southwestern Missouri. There were significant differences in home range size between males, non-gravid females and gravid females in all home range area estimates, except core use area (50% Kernel home range area estimates), with …
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Effects of Temperature on Foraging, Endurance, and Sprint Speed in Agkistrodon Piscivorus and Nerodia Sipedon
… were faster and exhibited higher endurance than cottonmouths across all temperatures and substrates which is consistent with predictions of differences in performance based on foraging mode.
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Evidence of Non-Strike Induced Chemosensory Searching by Eastern Copperheads (Agkistrodon Contortrix) During Cicada Predation
… searching (NSICS) was previously found in cottonmouths (<italic>A. piscivorus</italic>) but could not be replicated with A. contortrix in later experiments. I observed foraging methods similar to non-strike induced chemoreception when specifically predating upon cicada nymphs during …